. Industrial Education Magazine . YANKEE Ratchet Screw Drivers Once the blade of the Yankee Ratchet Screw-driver is inserted in the screw slot, you justturn the handle back and forth. No tiresomegrip-and-let-go movement of the fingers. Younever shift your first good grip until the screwis driven home. You drive more screws;you save time and labor. A push of the ratchetshifter gives right or left ratchet movement;or rigid adjustment. Your Dealer Can Supply You Write for Yankee Tool Bookshowing full line ot YankeeTools in action. Its free! North Bros. Mfg. Co., Philadelphia

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